A207987 - OEIS

%I #5 Mar 31 2012 12:37:20

%S 529,279841,95527856,31638012071,10629041648848,3578849222737632,

%T 1204494622138201455,405333113827258812431,136403423286792425969870,

%U 45903034302323213277967472,15447463885373895264608054021

%N Number of nX6 0..2 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically

%C Column 6 of A207989

%H R. H. Hardin, <a href="/A207987/b207987.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..2..0..2..1..1..1....2..2..2..1..2..2....2..2..1..2..0..0....1..1..1..2..0..2

%e ..1..0..0..1..2..2....0..2..2..0..0..2....2..0..0..2..2..2....2..0..1..1..0..1

%e ..0..0..0..2..0..2....1..0..1..2..0..2....1..1..0..2..2..0....1..2..2..1..0..0

%e ..2..0..1..1..0..0....0..2..0..2..0..2....1..0..1..2..0..2....0..1..2..2..0..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 22 2012